[英]How can i make an HTTP POST request and and use the Json Response i should get in android
我嘗試向Web服務發出http登錄請求。 我按如下所示設置JSONobject請求,但是當我嘗試調試代碼時,響應JSON對象似乎為空。 (我應該得到一個JSON對象作為響應)。 任何想法?
public UserData initLogin(Creds cr) {
StringBuilder finalURL = new StringBuilder("https://");
finalURL.append(credentials.getUrl());
finalURL.append("/s1services");
Response.Listener<JSONObject> r1 = new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
res = response.toString();
us = gson.fromJson(String.valueOf(response), UserData.class);
}
};
JsonObjectRequest req = new JsonObjectRequest(Request.Method.POST, finalURL.toString(), cr.serObj(), r1, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
});
return us;
}
我應該將此請求放入請求隊列或其他東西嗎? 我應該提到憑證類具有URL屬性和getUrl()方法。
我將按照Android文檔中的示例進行操作:
StringBuilder finalURL = new StringBuilder("https://");
finalURL.append(credentials.getUrl());
finalURL.append("/s1services");
String url = finalURL.toString();
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest
(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
//handle your json response here
us = gson.fromJson(String.valueOf(response), UserData.class);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// TODO: Handle error
}
});
// Access the RequestQueue through your singleton class.
MySingleton.getInstance(this).addToRequestQueue(jsonObjectRequest);
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